Polyvalence or polyvalent may refer to: Polyvalency (chemistry), chemical species, generally atoms or molecules, which exhibit more than one chemical valence Polyvalence (music), the musical use of more than one harmonic function of a tonality simultaneously Polyvalent antibody, a group of antibodies that have affinity for various antigens Polyvalent logic, a form of many-valued logic or probabilistic logic Polyvalent vaccine, a vaccine that can vaccinate a person against more than one strain of a disease Sala Polivalentă (disambiguation), various stadiums in Romania commonly translated as Polyvalent Hall Snake antivenom that contains neutralizing antibodies against two or more species of snakes See also Bivalence, principle in logic that every declaration is either true or false Monovalence (disambiguation) Valence (disambiguation)